RTD P1000 wire was picking noise and is giving unsuitable reading. How to filter those noise.
RTD P1000 wire was picking noise and is giving unsuitable reading. How to filter those noise.
You can also just use a running average of a bunch of measurements. This "technique" can be useful if you are looking for a relative shift in temperature more so than an accurate temperature reading. The noise is in both readings so the difference between two running average measurements should be reasonably accurate.
Even if you are looking for a single reading, the average of the readings compared to a simple thermometer will reveal if there is an offset - that could be compensated for with a correction factor or if the temperature reading is close enough to be acceptable. Remember, just because the microcontroller's analog to digital converter gives you a value with a bunch of decimal places, it doesn't mean that the value is accurate or precise.
You can also just use a running average of a bunch of measurements. This "technique" can be useful if you are looking for a relative shift in temperature more so than an accurate temperature reading. The noise is in both readings so the difference between two running average measurements should be reasonably accurate.
Even if you are looking for a single reading, the average of the readings compared to a simple thermometer will reveal if there is an offset - that could be compensated for with a correction factor or if the temperature reading is close enough to be acceptable. Remember, just because the microcontroller's analog to digital converter gives you a value with a bunch of decimal places, it doesn't mean that the value is accurate or precise.